问题是数学的心脏,好的问题能激发思维,引导思维。教师要充分利用各种学习资源,为学生提供值得探索的问题场景,为学生的质疑、探究、应用提供帮助,做一个真正意义上的组织者、引领者和合作者。美国教学法专家斯特林·G·卡尔汉认为:“提问是教师促进学生思维,评价教学效果以及推动学生实现预期目标的基本控制手段。”由此可见,一个好的课堂提问,不但能巩固知识,及时反馈教学信息,而且能够启迪学生的思维,发展学生 The problem is the heart of mathematics, good questions can stimulate thinking, guide thinking. Teachers should make full use of various learning resources to provide students with scenarios worth exploring, to help students to question, explore and apply, to be a real organizer, leader and collaborator. Stirlin G. Calhan, an expert on pedagogy in the United States, believes that “questions are the basic control measure that teachers use to promote students ’thinking, evaluate teaching effectiveness, and promote students’ achievement of their desired goals.” Thus, a good class of questions not only To consolidate knowledge, timely feedback of teaching information, but also to inspire students’ thinking and development of students